Secondary Camera Troubleshooting - Nokia RM-596 Service Manual

Secondary camera troubleshooting

Context
The following references on the PWB help in the effective debugging and troubleshooting of the secondary
camera.
Sr. No
1 H1487
2 R1487, R1488
3 D1400
4 N1515
5 N1517
The following test points on the PWB help in the effective debugging and troubleshooting.
Sr. No Signal name
1 VCAM_1V8
2 VCAM_2V8
3 VDIG_ENABLE
4 VANA_ENABLE
5 SEC_CAM_CLK
6 SEC_CAM_SHUTDOW
N
7 SEC_CAM_I2C(1:0)
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Reference
Secondary camera
Pull-up resistors on the secondary camera I2C lines. Resistor value
4.7 KOHMS.
BCM2727B IC
VCAM_1V8 regulator
VCAM_2V8 regulator
Measuring point
L1487/C1488
L1488/C1491
J1515
J1516
J1487
J1488
R1487, R1488
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Camera Module Troubleshooting
Description
Description
1.8V supply to secondary camera
2.8V supply to secondary camera
Enable signal for VCAM_1V8 regulator. This signal
needs to be High for the regulator to be On.
Enable signal for VCAM_2V8 regulator. This signal
needs to be High for the regulator to be On.
External clock signal to secondary camera
Shutdown signal to secondary camera. This
needs to be High for the camera to be Up.
I2C signals for secondary camera
RM-596
Issue 2